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