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