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)(17,18,23,25)(19,24,28,31)(20,21,30,26)(22,29,32,27)(33,34)(35,36)(37,41)(38,42)(39,40)(43,44)(45,47)(46,48)(1,3)(2,7)(4,9)(5,13)(6,11)(8,16)(10,15)(12,14)(17,19,23,28)(18,24,25,31)(20,27,30,29)(21,22,26,32)(33,35,38,40)(34,39,42,36)(37,43,46,45)(41,47,48,44)(3,11)(4,14)(7,15)(8,13)(18,25)(19,28)(20,30)(22,32)(33,35,38,40)(34,36,42,39)(37,45,46,43)(41,47,48,44)(1,4)(2,8)(3,12)(5,7)(6,14)(9,11)(10,13)(15,16)(17,20,23,30)(18,26,25,21)(19,29,28,27)(22,31,32,24)(33,35)(34,36)(37,43)(38,40)(39,42)(41,44)(45,46)(47,48)(1,5)(2,9)(3,8)(4,15)(6,16)(7,14)(10,12)(11,13)(17,21,23,26)(18,20,25,30)(19,22,28,32)(24,27,31,29)(33,36)(34,40)(35,42)(37,44)(38,39)(41,45)(43,48)(46,47)(1,3)(2,7)(4,12)(5,8)(6,11)(9,14)(10,15)(13,16)(17,22)(18,27)(19,26)(20,31)(21,28)(23,32)(24,30)(25,29)(33,37,38,46)(34,41,42,48)(35,43,40,45)(36,44,39,47)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.