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