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