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