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