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