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