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