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