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