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