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