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