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