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