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