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