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