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