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