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