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