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