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