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