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