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