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