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