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