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