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