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