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