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