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