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