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