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