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