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