One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,8)(3,10,13,7)(4,12,14,9)(5,15,16,11)(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)(1,3,6,13)(2,7,8,10)(4,11,14,15)(5,12,16,9)(19,25)(22,29)(26,31)(30,32)(35,44)(37,45)(40,43)(42,48)(2,8)(4,14)(7,10)(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)(1,4,6,14)(2,9,8,12)(3,11,13,15)(5,10,16,7)(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)(1,3)(2,10)(4,15)(5,9)(6,13)(7,8)(11,14)(12,16)(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)(1,5)(2,11)(3,12)(4,10)(6,16)(7,14)(8,15)(9,13)(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.