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