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