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