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