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