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