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