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