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