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