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