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