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