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