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