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