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