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