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