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