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