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