One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,8)(3,7,11,14)(4,9,13,16)(5,12,15,10)(33,34,39,44)(35,43,38,40)(36,46,45,41)(37,42,47,48)(1,3)(2,7)(4,10)(5,9)(6,11)(8,14)(12,13)(15,16)(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)(2,8)(3,11)(4,13)(5,15)(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)(2,7)(4,10)(5,9)(6,11)(8,14)(12,13)(15,16)(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)(2,9)(3,12)(5,14)(6,13)(7,15)(8,16)(10,11)(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)(1,5,6,15)(2,10,8,12)(3,9,11,16)(4,14,13,7)(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.