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