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