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