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