LM317 has no max input because there is no ground connected directly to the regulator, there is only a max allowed IN/OUT voltage difference which is 40v, if you can keep restriction and the voltage difference doesn't go over that then the regulator will be fine.
An alternative is LM317HV which is the high voltage version, it has a max allowed IN/OUT voltage difference of 60v
Current is really not an issue, having a source that can provide more current is not a problem but you will only be able to get about 1.5A from the regulator assuming that you can provide sufficient cooling.
Another idea is to use a pre-regulator, that can be a transistor with a zener to reduce the voltage supplied to the LM317, something like
I assume you are aware that in order to feed the regulator you need to rectify the AC output of your transformer to DC using a rectifier bridge and a capacitor.
I'm tempted to suggest the use of a switching regulator that is very efficient compared to a linear regulator like LM317.
You can easily find a ready board like the following (in ebay) using a LM2596 that can provide up to 3A with minimum power consumption which means less wasted power and less heat. The only problem is that you have to use the pre-regulator I have described or another method to lower the voltage at about 40v (or lower) in order to feed the switching regulator because there is a max input limit of 45v.
Regarding the pre-regultor solution, you can check this application note High Voltage Adjustable Power Supplies - Texas Instruments.
It uses a tracking pre-regulator that keeps the IN/OUT difference of LM317 constant at 5v and although the specific design is for high input voltage and low output current it can give you ideas of how to proceed with your project.