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