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