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