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