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