One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6,11,16,12,17,10,31)(7,13,20,34,21,24,32,33)(8,22,27,35,26,19,25,14)(9,15,29,23,30,36,28,18)(2,4)(5,7)(6,13)(8,23)(9,19)(10,32)(11,20)(12,21)(14,29)(15,25)(16,34)(17,24)(18,26)(22,30)(27,36)(28,35)(31,33) involution — undirected(2,4)(5,8,10,25,12,26,11,27)(6,14,16,22,17,35,31,19)(7,18,20,15,21,23,32,36)(9,24,28,34,30,13,29,33)(2,4)(5,9,11,29,12,30,10,28)(6,15,16,23,17,36,31,18)(7,19,20,14,21,22,32,35)(8,24,27,33,26,13,25,34)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.