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