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