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