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