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