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