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