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