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