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