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