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