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