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