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