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