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