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