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