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