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)(17,18,22,23,21,24,20,26)(19,27,30,32,29,25,28,31)(1,3,4,7)(2,5,6,8)(9,10)(11,15)(12,14)(13,16)(18,23)(19,28)(20,22)(24,26)(29,30)(31,32)(2,6)(5,8)(9,11)(10,13)(12,16)(14,15)(18,24)(19,29)(23,26)(28,30) involution — undirected(11,16)(13,15)(17,19,20,28,21,29,22,30)(18,25,26,32,24,27,23,31)(10,14)(13,15) 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.