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