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