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