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