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