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