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