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