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