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