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