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