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