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