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