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