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