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