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