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