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