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