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)(17,18,22,26)(19,25,30,23)(20,21,31,24)(27,32,28,29)(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)(18,23)(20,27)(21,29)(22,30)(24,32)(25,26)(28,31)(34,39)(40,43)(41,42)(47,48)(4,12)(9,14)(11,13)(15,16)(17,20,22,31)(18,24,26,21)(19,27,30,28)(23,32,25,29)(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)(17,20)(18,21)(19,28)(22,31)(23,32)(24,26)(25,29)(27,30)(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)(17,21)(18,20)(19,29)(22,24)(23,27)(25,28)(26,31)(30,32)(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)(17,19)(18,25)(20,27)(21,32)(22,30)(23,26)(24,29)(28,31)(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.