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