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