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