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