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