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