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