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