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