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