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