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