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)(17,18,23,20,22,24,21,29)(19,25,27,30,28,32,31,26)(1,2)(3,8)(4,6)(5,7)(9,10)(11,14)(12,13)(15,16)(18,24)(20,29)(25,32)(26,30) involution — undirected(1,3,5,4)(2,6,7,8)(10,13)(14,15)(17,19,22,28)(18,25,24,32)(20,30,29,26)(21,31,23,27)(1,4,5,3)(2,6,7,8)(10,13)(14,15)(17,20,23,24,22,29,21,18)(19,26,27,25,28,30,31,32)(9,11,12,16)(10,14,13,15)(17,21,22,23)(18,20,24,29)(19,27,28,31)(25,26,32,30)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.