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