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