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