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