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