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