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