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