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