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