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