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