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