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