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