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