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