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