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