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