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