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