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