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