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