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