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