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)(11,12,13,14)(17,18,20,21)(19,22,24,23)(25,26,29,32)(27,28,31,30)(1,2)(3,7)(4,6)(5,8)(9,11,15,13)(10,12,16,14)(18,21)(22,23)(25,27,29,31)(26,30,32,28)(3,8)(5,7)(9,12,15,14)(10,11,16,13)(17,19,20,24)(18,22,21,23)(25,27)(26,28)(29,31)(30,32)(1,2)(3,5)(4,6)(7,8)(9,13,15,11)(10,12,16,14)(1,3)(2,5)(4,8)(6,7)(9,14,15,12)(10,11,16,13)(17,18)(19,23)(20,21)(22,24)(25,28)(26,31)(27,32)(29,30)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.