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