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