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