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