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