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