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