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