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