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