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