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