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