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