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