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