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