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