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