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