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