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