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