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