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