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