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