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