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