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