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