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