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