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