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