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