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