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