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