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