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)(21,22,25,29,26,30,24,28)(23,27,34,36,32,35,33,31)(1,2)(3,4)(6,11)(8,9)(12,19)(13,14)(15,20)(16,17)(21,23,24,33,26,32,25,34)(22,27,28,31,30,35,29,36)(2,4)(5,7,10,18)(6,12,14,15)(8,16,9,17)(11,19,13,20)(21,22,26,30)(23,31,32,36)(24,29,25,28)(27,34,35,33)(5,8)(7,16)(9,10)(11,13)(17,18)(19,20)(23,32)(27,35)(31,36)(33,34) 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.