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