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