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)(23,33)(24,38)(25,30)(26,31)(27,32)(28,35)(29,39)(34,42)(36,44)(37,43)(40,45)(41,46)(47,48)(49,52)(50,51) involution — undirected(1,2,3,4)(5,7)(6,10)(8,14)(9,13)(11,17)(12,18)(15,20)(16,19)(21,23,25,35,27,37,26,36)(22,28,31,33,32,44,30,43)(24,34,41,50,40,49,39,48)(29,42,45,47,46,52,38,51)(6,11)(7,13)(12,15)(14,19)(21,24,26,39,27,40,25,41)(22,29,30,38,32,46,31,45)(23,34,36,48,37,49,35,50)(28,42,43,51,44,52,33,47)(7,13)(10,17)(14,19)(18,20)(21,25,27,26)(22,30,32,31)(23,35,37,36)(24,39,40,41)(28,43,44,33)(29,45,46,38)(34,48,49,50)(42,47,52,51)(5,8,9,16)(6,12,11,15)(7,14,13,19)(10,18,17,20)(24,40)(29,46)(34,49)(38,45)(39,41)(42,52)(47,51)(48,50)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.