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