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