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