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)(35,37)(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)(18,23)(20,27)(21,29)(22,30)(24,32)(25,26)(28,31)(34,40)(35,42)(41,44)(43,48)(4,12)(9,14)(11,13)(15,16)(17,20,22,31)(18,24,26,21)(19,27,30,28)(23,32,25,29)(33,35,39,42)(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)(17,20)(18,21)(19,28)(22,31)(23,32)(24,26)(25,29)(27,30)(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)(17,21)(18,20)(19,29)(22,24)(23,27)(25,28)(26,31)(30,32)(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)(17,19)(18,25)(20,27)(21,32)(22,30)(23,26)(24,29)(28,31)(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.