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