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