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