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