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