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