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