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