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)(11,16)(12,15)(13,14)(18,19)(20,24)(25,26,30,28)(27,29,32,31)(2,3)(6,7)(9,11,14,15)(10,12,13,16)(20,24)(22,23)(25,26,30,28)(27,29,32,31)(4,8)(6,7)(10,13)(11,15)(17,18,21,19)(20,22,24,23)(25,27,30,32)(26,31,28,29)(1,3,5,2)(4,6,8,7)(9,12,14,16)(10,15,13,11)(17,19,21,18)(20,23,24,22)(25,28,30,26)(27,29,32,31)(1,4,5,8)(2,6,3,7)(9,13,14,10)(11,12,15,16)(17,20)(18,22)(19,23)(21,24)(25,29)(26,27)(28,32)(30,31)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.