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