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