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