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)(11,15)(12,14)(13,16)(19,20)(21,23)(25,26,28,30)(27,31,32,29)(2,6)(4,7)(9,11,12,16)(10,13,14,15)(17,18,22,24)(19,23,20,21)(27,32)(29,31)(2,6)(3,8)(10,14)(13,15)(17,19,22,20)(18,23,24,21)(25,27)(26,29)(28,32)(30,31)(1,3)(2,4)(5,8)(6,7)(9,10)(11,13)(12,14)(15,16)(17,20,22,19)(18,21,24,23)(1,4)(2,3)(5,7)(6,8)(9,11)(10,13)(12,16)(14,15)(17,21)(18,19)(20,24)(22,23)(25,26)(27,29)(28,30)(31,32) 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.