One vertex per element, one color per generator, with an edge from x to x·s.
(9,10,14,12)(11,16,13,15)(18,23)(19,24)(21,29)(28,32)(1,2,5,7)(3,4,8,6)(17,18)(19,26)(20,24)(21,25)(22,23)(27,32)(28,31)(29,30)(1,3,5,8)(2,6,7,4)(9,11,14,13)(10,15,12,16)(17,19,22,24)(18,20,23,26)(21,27,29,31)(25,28,30,32)(1,3,5,8)(2,6,7,4)(9,11,14,13)(10,16,12,15)(17,18)(19,20)(21,25)(22,23)(24,26)(27,28)(29,30)(31,32)(1,3)(2,4)(5,8)(6,7)(9,12,14,10)(11,16,13,15)(17,20)(18,24)(19,23)(21,28)(22,26)(25,31)(27,30)(29,32)(1,4)(2,3)(5,6)(7,8)(9,13,14,11)(10,16,12,15)(17,21,22,29)(18,25,23,30)(19,27,24,31)(20,28,26,32)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.