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)(17,18,22,24)(19,21,20,23)(25,26)(27,31)(28,29)(30,32)(2,3)(4,8)(9,11,13,12)(10,14,15,16)(17,19)(18,23)(20,22)(21,24)(26,29)(27,32)(2,3)(6,7)(11,12)(14,16)(18,24)(19,20)(25,26,28,29)(27,30,32,31)(1,3,5,2)(4,7,8,6)(9,12,13,11)(10,14,15,16)(17,20,22,19)(18,21,24,23)(25,26)(27,30)(28,29)(31,32)(1,4,5,8)(2,6,3,7)(9,10)(11,16)(12,14)(13,15)(17,21)(18,19)(20,24)(22,23)(25,27)(26,30)(28,32)(29,31)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.