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