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