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