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