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