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)(11,13)(12,14)(15,16)(17,18,23,27)(19,28,30,20)(21,26,22,25)(24,31,32,29)(9,10)(11,15)(12,14)(13,16)(17,19,23,30)(18,24,27,32)(20,25,28,26)(21,29,22,31)(1,3,5,4)(2,6,8,7)(9,11,12,16)(10,13,14,15)(17,19)(18,20)(21,31)(22,29)(23,30)(24,26)(25,32)(27,28)(1,3,5,4)(2,7,8,6)(11,16)(13,15)(17,20)(18,19)(21,24)(22,32)(23,28)(25,29)(26,31)(27,30)(1,4,5,3)(2,6,8,7)(10,14)(13,15)(17,21,23,22)(18,25,27,26)(19,29,30,31)(20,24,28,32)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.