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