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