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