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)(19,25)(20,27)(21,23)(22,26)(24,28)(29,32)(30,31)(1,2)(3,7)(4,6)(5,8)(9,11,14,15)(10,13,16,12)(18,23)(24,31)(25,32)(26,27)(1,3)(2,5)(4,8)(6,7)(9,10)(11,12)(13,15)(14,16)(17,19)(18,24)(20,28)(21,29)(22,30)(23,31)(25,26)(27,32) involution — undirected(2,6)(3,8)(9,12,14,13)(10,15,16,11)(17,19)(18,25)(20,30)(21,29)(22,28)(23,32)(24,26)(27,31)(2,6)(5,7)(9,13,14,12)(10,15,16,11)(17,20,21,22)(18,26,23,27)(19,28,29,30)(24,25,31,32)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.