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