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