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