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