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