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