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