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