God made 3.3V displays for a reason. Likewise, God made Adapter shields for a reason.
Your particular display has not got a XPT2046 mounted. So Touch is not possible.
You will damage the TFT controller if you connect 5V logic.
It looks as if the SD cage has series resistors. It will probably be fine with 5V logic.
You can use series resistors or voltage dividers if you don't want to buy a proper Adapter.
David.