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