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