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