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