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