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