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