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