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