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