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