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