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)(21,22,25,27)(23,31,32,47)(24,36,37,29)(26,40,33,30)(28,42,41,35)(34,49,38,46)(39,45,48,51)(43,50,44,52)(1,2)(3,4)(5,7,9,15)(6,10,11,13)(8,16,17,14)(12,20,19,18)(22,27)(23,32)(24,37)(30,40)(35,42)(39,48)(43,44)(46,49)(2,4)(21,23,33,42,25,32,26,35)(22,28,40,47,27,41,30,31)(24,38,48,50,37,34,39,52)(29,44,51,46,36,43,45,49)(6,11)(10,13)(12,19)(18,20)(21,24)(22,29)(23,34)(25,37)(26,39)(27,36)(28,43)(30,45)(31,46)(32,38)(33,48)(35,50)(40,51)(41,44)(42,52)(47,49) involution — undirected(2,4)(5,8,9,17)(6,12,11,19)(7,14,15,16)(10,18,13,20)(23,32)(24,37)(28,41)(29,36)(31,47)(35,42)(39,48)(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.