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