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