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