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