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