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