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