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