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