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