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