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