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