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