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