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