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