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