We have been to The Boardwalk several times (it's my favorite resort). The GV's are all located near each other however the studios, 1 Bedroom & 2 Bedrooms are mixed up. I also do not know of any specific floor plan (public anyway) that shows exactly how the room are seperated.
If this is your first trip to BW, make sure you frequent the Boardwalk Bakery and, if possible, try to make it to Jellyrolls (great fun), but FYI, it is adults only.