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