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