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