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