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