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