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