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