One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(5,6)(7,11)(8,12)(9,10)(13,19)(14,17)(15,20)(16,18)(22,27)(28,42)(29,43)(30,40)(31,49)(37,50)(45,48)(47,51)(6,10)(11,17)(12,18)(19,20)(21,22,24,27)(23,31,32,49)(25,37,35,50)(26,40,36,30)(28,44,42,33)(29,46,43,39)(34,51,41,47)(38,48,52,45)(2,4)(5,7,9,14)(6,11,10,17)(8,15,16,13)(12,20,18,19)(21,23,24,32)(22,28,27,42)(25,38,35,52)(26,41,36,34)(29,47,43,51)(30,48,40,45)(31,50,49,37)(33,46,44,39)(5,8,9,16)(6,12,10,18)(7,13,14,15)(11,19,17,20)(23,32)(28,42)(31,49)(33,44)(34,41)(38,52)(45,48)(47,51)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.