Buffalo to Boston is not a day trip unless you fly, and even then it's cutting it close. You'd be better off finding a good bar in Buffalo and watching the game there.
From Syracuse it's about a seven hour drive, add on two more hours or more coming from Buffalo, and you're looking at 18-20 hours of just driving.
Maybe this will help, it's a map of NY comparing it to England. You have to travel completely across NY before even getting to the Massachusetts border, then drive almost the entire length of Mass to get to Foxboro.