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