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