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