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