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