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