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