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