Hello,
MPC5748G is low cost board, so from my point of view, there is not conformal coating, but I am not 100% sure. I recommend you to use ESD pad for work with the board if you want to be sure the board will not be damaged by electrostatic charge.
My personal experience is that board can be used with bare hands. I am working with this board long time and I have not destroyed neither one board.
Regards,
Martin