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