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