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