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