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