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