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