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