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