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