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