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