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