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