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