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)(19,24)(20,27)(21,29)(22,23)(25,31)(26,28)(30,32)(33,34)(35,37)(36,39)(38,44)(40,42)(41,46)(43,47)(45,48)(2,7)(3,10)(9,16)(11,12)(17,19,22,27)(18,20,23,24)(21,26,31,30)(25,28,29,32)(33,35)(34,40)(36,37)(38,43)(39,42)(41,47)(44,45)(46,48)(18,23)(20,24)(25,29)(28,32)(34,36)(35,42)(41,44)(43,48) involution — undirected(1,3,6,10)(2,8,7,5)(4,12,14,11)(9,15,16,13)(17,20)(18,19)(21,28)(22,24)(23,27)(25,26)(29,30)(31,32)(33,36,39,34)(35,37,42,40)(38,44,46,41)(43,45,48,47)(1,4,6,14)(2,9,7,16)(3,11,10,12)(5,15,8,13)(17,19)(18,24)(20,23)(21,30)(22,27)(25,28)(26,31)(29,32)(33,37)(34,35)(36,42)(38,45)(39,40)(41,43)(44,48)(46,47)(1,5,6,8)(2,10,7,3)(4,13,14,15)(9,11,16,12)(17,21,22,31)(18,25,23,29)(19,26,27,30)(20,28,24,32)(33,38,39,46)(34,41,36,44)(35,43,42,48)(37,45,40,47)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.