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