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