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