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