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