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