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