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