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