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