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