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