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