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