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