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