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