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