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