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