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