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