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