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