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)(19,24)(20,29)(21,25)(22,32)(23,26)(27,31)(28,30)(1,3)(2,5)(4,8)(6,7)(9,10)(11,15)(12,16)(13,14)(17,19,23,27)(18,24,26,31)(20,25,30,32)(21,28,22,29)(2,6)(3,8)(10,14)(15,16)(17,20,22,24,23,30,21,31)(18,19,25,29,26,27,32,28)(2,6)(5,7)(9,11,13,12)(10,15,14,16)(19,27)(20,30)(24,31)(28,29)(9,12,13,11)(10,15,14,16)(17,21,23,22)(18,25,26,32)(19,28,27,29)(20,24,30,31)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.