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