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)(9,13)(10,14)(15,16)(17,18,24,22)(19,21,25,20)(23,30,31,26)(27,28,32,29)(33,34,39,37)(35,40,46,45)(36,42,47,41)(38,48,44,43)(1,3)(2,7)(4,8)(5,10)(6,11)(9,14)(12,15)(13,16)(17,19)(18,20)(21,22)(23,27)(24,25)(26,28)(29,30)(31,32)(33,35,39,46)(34,40,37,45)(36,44,47,38)(41,48,42,43)(1,2,6,4)(3,8,11,7)(5,9,13,12)(10,15,16,14)(17,20,24,21)(18,25,22,19)(23,28,31,29)(26,32,30,27)(33,36)(34,41)(35,44)(37,42)(38,46)(39,47)(40,48)(43,45)(1,4,6,2)(3,8,11,7)(5,12,13,9)(10,15,16,14)(17,21,24,20)(18,25,22,19)(23,29,31,28)(26,32,30,27)(33,36)(34,42)(35,44)(37,41)(38,46)(39,47)(40,43)(45,48)(1,3)(2,8)(4,7)(5,10)(6,11)(9,15)(12,14)(13,16)(17,22,24,18)(19,21,25,20)(23,26,31,30)(27,28,32,29)(33,37,39,34)(35,45,46,40)(36,42,47,41)(38,48,44,43)(1,5)(2,9)(3,10)(4,12)(6,13)(7,14)(8,15)(11,16)(17,23)(18,26)(19,27)(20,28)(21,29)(22,30)(24,31)(25,32)(33,38,39,44)(34,43,37,48)(35,36,46,47)(40,41,45,42)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.