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