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