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