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