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