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