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