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