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