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