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