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