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