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