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