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