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