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