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