One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,3)(9,10,14,12)(11,15,13,16)(17,18)(19,25)(20,27)(21,29)(22,23)(24,30)(26,28)(31,32)(6,8)(9,11,14,13)(10,15,12,16)(18,23)(20,25)(21,30)(26,32)(1,2,4,3)(5,6,7,8)(9,11,14,13)(10,16,12,15)(17,19,22,27)(18,20,23,25)(21,26,30,32)(24,28,29,31)(1,3,4,2)(9,12,14,10)(11,15,13,16)(17,20)(18,19)(21,28)(22,25)(23,27)(24,26)(29,32)(30,31)(9,13,14,11)(10,15,12,16)(17,21)(18,24)(19,26)(20,28)(22,30)(23,29)(25,31)(27,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.