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